later this week is the vice presidential debate. now the obama camp is dismissing the romney speech saying it's a third or fourth time to explain his intentions. >> there are two presidential debates left in campaign 2012. but on thursday the vice presidential candidates go head-to-head. usually there's little attention paid to the debate between vp candidates but as bill plante reports this year is different. roll it's biden versus ryan. age versus youth. a great society liberal. >> we're going to ask the wealthy to pay more. >> reporter: versus the conservative. >> wouldn't it be nice have a job creator in the white house. >> reporter: biden became a u.s. senator when ryan turned 3. and ran for president twice. he's been on many debate stages before. >> nothing like standing up before 70 million people. >> reporter: biden is a nonstop talking prone to putting his foot in his mouth. >> vice president biden just today said the middle class over the last four years has been quote buried. we agree. >> reporter: on "face the nation" to